The present invention is a pump control and distribution system consisting of a pump and reversing flow control valve with a single-handle to control flow direction and flow rate of a liquid. The partial loops cooperatively form a composite loop for attachment of a filtering element which will expand in the body vessel to capture embolic debris entrained in the fluid of the vessel. The liquid ejection characteristics are measured in a one-by-one basis of the nozzle openings. For example, an illumination system may take the form of a closed or partial ring around which lighting elements may be selectively activated. The coated substrates are useful for controlling the flow of fluid. The dual-gate transistor is configured such that the connection node between the two transistors constituting the dual-gate transistor is pulled down to the L level by the capacitive coupling between the gate and second node in accordance with the change of the gate from the H level to the L level.